SACRAMENTO, Calif. (AP) — A California agency is seeking to boost water supplies in the midst of a devastating drought by assigning conservation targets to slash city water use.

The State Water Resources Control Board on Tuesday released a draft plan with water reduction targets for cities from 10 to 35 percent.

Some cities must drastically improve water savings. San Diego must cut its water use by 20 percent after cutting only 2 percent so far. Others such as Santa Cruz have already made deep cuts and are likely to easily meet their targets.

Gov. Jerry Brown last week mandated a 25 percent cut statewide in urban water use. The targets are based on how much water residents already use.

Water savings are compared to 2013, the year before Brown declared a drought emergency.